Ex andee wilson



UNITED STATES PATENT OFFICEO THOMAS ENGLISH, OE HAIVLEY, DAETFOED,COUNTY OF KENT, AND AL- EXAEDER XVILSOX, OE SHEFFIELD, COUNTY OE YORK,ENGLAND.

ARMOR-PLATE.

SPECIFICATION forming part of Letters Patent No. 307,035, dated October21, 1884.

Application filed July 15, lSSl.- (No model.) Patented in England June10, 1884, No. 8,817.

T 0 (0M whom, it may concern.-

Be it known that we, Tnonas ENGLISH and ALEXANDER Wilson, citizens ofEngland, residing, respectively, at Hawley, Dart-ford, county of Iient,England, and at Sheffield, county of York, England, have invented a newand useful Improvement in Armor-Plates, of which the following is aspecification.

Armor-plates made wholly or partly of steel are liable,when struck byprojectiles, to break in pieces. Our invention relates to means ofreducing the liability of such plates to fracture, and of preventing thepieces from separating when fracture occurs. e effect this as we willdescribe, referring to the accompanying drawings.

Figure 1 is a front view; Fig. 2, a transverse section; Fig. 3, anelevation of one edge of an armor-plate to which our invention isapplied; Fig. 4, a view similar to Fi 3 of a curved armor-plate; andFig. 5, an end view of a beveled plate, showing the manner of formingthe grooves therein.

The plate may consist,as shown, of iron, I, faced with steel, S, or itmight be entirely of steel. All around in the edges of the plate, withinits thickness,we cut a groove,A, making this groove with its bottomrounded at the corners a, and also somewhat rounded in profile at theangles Z). In this groove we wind around the plate numerous convolutionsof wire or ribbon, preferably of steel, so as to fill up the groove andform a strong girdle around the body of the plate. IVhen the plate isslightly curved, the groove may be straight but when the curvature isconsider: able the groove should follow the like curvature, as shown inFig. I, so that it is parallel or approximately parallel to the face andback of the plate. XYhen a plate is thinned at one edge, which isusually done by beveling off aportion of the back, we form the groove asshown in the end view,'Fig. 5, cutting it in several steps, 0, formed inthe beveled part, these steps converging along the ends into a singlegroove, A, out along the wide edge. Several of the convolutions of thewire or ribbon occupy each of these step-grooves c, all theseconvolutions occupying conjointly the wide groove A.

Having thus described the nature of our invention and the best means weknow for carrying the same into practical effect,we claim- 1. Anarmor-plate havinga groove cut in its edges and filled with wire orribbon wound in numerous convolutions around the plate, substantially asand for the purposes herein set forth.

2. An armor-plate thinned toward one edge, having several grooves cut insteps at its back, converging to a single groove in its wide edge, thesaid grooves tilled with wire or ribbon wound in numerous convolutionstherein, sub stantially as described.

In testimony whereof we have signed our names to this specification, inthe presence of two subscribing witnesses, this 26th day of June, A. D.1884.

THOMAS ENGLISH. ALEXANDER IVILSON. Vitnesses to the signature of theabovenamed Thomas English:

J. \VATI, PERCY It. GoLnnrNo, Both of 17 Graceclmrch Street, London.

IVitnesses to the signature of the abovenamed Alexander IYilson:

G. W. WEs'rLEy, PERCY It. GOLDRING, Both of 17 Graceflmrch Street,London.

